CN103415036A - UE switching method and device with lossless tracking - Google Patents
UE switching method and device with lossless tracking Download PDFInfo
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- CN103415036A CN103415036A CN2013103571128A CN201310357112A CN103415036A CN 103415036 A CN103415036 A CN 103415036A CN 2013103571128 A CN2013103571128 A CN 2013103571128A CN 201310357112 A CN201310357112 A CN 201310357112A CN 103415036 A CN103415036 A CN 103415036A
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Abstract
The invention discloses a UE switching method and device with lossless tracking. The UE switching method comprises the steps that (1) an air interface monitoring device finds target UE and tracks the target UE; (2) the air interface monitoring device starts adjacent region measurement and determines a candidate cell set; (3) whether the candidate cell set is triggered to be updated or not is judged, if yes, the step (4) is conducted, and if not, the step (5) is conducted; (4) the air interface monitoring device monitors updating of the candidate cell set; (5) the air interface monitoring device detects whether the target UE receives a switching command or not, if yes, the step (6) is conducted, and if not, the step (3) is conducted in a backed mode; (6) random access process of the target UE is monitored in a target cell according to instrument information in the switching command; (7) the air interface monitoring device finds the target UE in the target cell and tracks the target UE, and operation is conducted back to the step (3) and conducted repeatedly. By means of the UE switching method and device with lossless tracking, switching of UE is achieved with lossless tracking in a high-speed, effective, low-cost and automated mode.
Description
Technical field
The present invention relates to wireless communication technology field and radio communication monitoring field, particularly a kind of method and device of harmless tracing customer equipment UE switching.
Background technology
Along with the development of wireless communication technology, people are to two-forty, and low the delay, low cost has proposed more and more higher requirement.LTE(Long Term Evolution) project has just produced under such background.This standard has adopted OFDM(Orthogonal Frequency Division Multiplexing), MIMO(Multiple Input Multiple Output) etc. the system architecture of advanced Radio Transmission Technology, flat network topology structure and all-IP; Support bandwidth varying, maximum 20M bandwidth; Surpass the peak rate of 200Mbit/s and shorter propagation delay time.
Along with development and the maturation of technology, in order to pursue higher speed, wider covering, networking more flexibly etc., some emerging technologies are arisen at the historic moment, for example carrier aggregation CA(Carrier Aggregation), relaying Relay, coordinate multipoint Comp etc.
At present, the monitoring wireless communication system, some monitoring equipments are arranged on the market, even equipment vendor just is equipped with correlation function, 3GPP(the3rd Generation Partner Project for example) on standard, the signaling tracing function is arranged, purpose is to follow the tracks of UE(User Equipment) at all signaling messages of network side.Simultaneously, the signaling that road measuring device also can monitoring UE, just can complete but the drive test product here generally needs mobile unit and test terminal is auxiliary.And need operator to drop into a large amount of manpowers, material resources, financial resources.Minimize trackside MDT(Minimization of Drive Test for this reason) produced.MDT utilizes commercial mobile phone, has configured the collection of information and has reported according to network side.Owing to relating to commercial mobile phone, so the data that MDT can take and information are limited, can not replace the drive test product fully.
In the real network operation, performance of handoffs has affected data rate, network side performance, user's experience etc.So it can be very significant optimizing mobile robustness.Current SON(Self-Organizing Network) in, mobile robustness optimization MRO(Mobility Robustness Optimization has been proposed) concept, purpose is in order to optimize performance of handoffs.But MRO, based on Radio Link Failure, can only optimize the optimization that serious network side problem is arranged, that is to say if Radio Link Failure does not appear in UE in moving process, be can not start Optimizing Flow.But even without Radio Link Failure, the performance of handoffs of network still has optimizes space.
As mentioned above, existing road measuring device needs that mobile unit and test terminal are auxiliary just can complete, and needs operator to drop into a large amount of manpowers, material resources, financial resources.The information that MDT can collect and data finite sum are imperfect, are difficult to play a role in real network optimization.And the MRO optimization method is optimized limited space based on Radio Link Failure, and it is slow to optimize convergence rate.
Owing to eating dishes without rice or wine monitoring equipment in the course of the work, need the configuration consistency of maintenance and monitored UE, persistent district unanimously could receive the up-downgoing data of specifying UE.And in handoff procedure, the monitoring equipment of only eating dishes without rice or wine receives that configuration information just can know Target cell and the configuration information thereof of UE, thus may eat dishes without rice or wine the monitoring equipment monitoring less than from UE at Target cell random access procedure and the up RRC(Radio Resource of article one Control) message.So lose in order to prevent tracking data, and the contingent switching rollback of UE, simultaneously possible Target cell and the cell-of-origin of monitoring UE of monitoring equipment of need to eating dishes without rice or wine, radio frequency is measured and realized to the monitoring equipment of eating dishes without rice or wine simultaneously to the possible Target cell of UE, the reception of system message, synchronous etc.
Therefore, prior art need badly a kind of can be at a high speed, effectively, low-cost, automation, can can't harm the method and apparatus of following the tracks of the UE switching.
Summary of the invention
In view of problems of the prior art, the present invention proposes the method and apparatus of a kind of harmless tracking UE switching.
The method of described harmless tracking UE switching, is characterized in that, described method comprises step:
S1, the monitoring equipment of eating dishes without rice or wine are found object UE and are followed the tracks of upper object UE;
S2, the monitoring equipment of eating dishes without rice or wine start nearby region measurement and determine the candidate cell collection;
S3, determine whether to trigger the candidate cell collection and upgrade, if proceed to step S4, otherwise proceed to step S5;
S4, the checkout equipment Monitoring and Update of eating dishes without rice or wine candidate cell collection;
S5, the monitoring equipment of eating dishes without rice or wine detect object UE and whether receive switching command, if proceed to step S6, otherwise get back to step S3;
S6, according to the random access procedure of the indication information in switching command to Target cell monitoring objective UE;
S7, the monitoring equipment object UE on Target cell is found object UE and followed the tracks of of eating dishes without rice or wine, return to step S3 and repeat.
Preferably, object UE described in step S1, according to the C-RNTI in the UE random access procedure (Cell Radio Network Temporary Identifier), RAPID(RACH Preamble Identifier), maximum transmission power, first resolves RAR(Random Access Response) and access at random successful UE.
Preferably, in step S2, when the monitoring equipment of eating dishes without rice or wine is measured alien frequencies, use the Gap common factor of tracked UE to do different-frequency measure, perhaps use idle radio-frequency channel resource to do different-frequency measure, or eat dishes without rice or wine monitoring equipment specially reserved radio-frequency channel resource do different-frequency measure.
Preferably, determining and upgrading of candidate cell collection, all according to the measurement result of the monitoring equipment of eating dishes without rice or wine, determine that the best n of a signal quality community is as the candidate cell collection.
Preferably, step S3 triggers in following situation:
Eat dishes without rice or wine monitoring equipment according to its measurement result, and the cycle is upgraded the community of candidate cell collection the inside; Perhaps
The random renewal; Perhaps
When receiving the measurement result that UE reports, according to the measurement result of UE, trigger the renewal of candidate cell collection.
Preferably, eat dishes without rice or wine monitoring equipment after the candidate cell collection that completes the UE measurement result and report triggering upgrades, start a timer, before timer expiry, the candidate cell collection is not upgraded.
Preferably, step S5 judgement receives described switching command, namely receive RRC and connect reconfiguration message, and the mobilityControlInfo cell is carried in the message the inside.
Preferably, in step S6, eat dishes without rice or wine monitoring equipment by the targetPhysCellId of mobilityControlInfo the inside, carrierFreq information is determined the Target cell of switching, and at Target cell, wait for the random access procedure of this UE, if provide rach-ConfigDedicated in the mobilityControlInfo cell, according to random access physical layer resource given in rach-ConfigDedicated and random access sequence, find and determine the access of object UE, if there is no rach-ConfigDedicated information, by the C-RNTI in the C-RNTI MAC Control Element in the newUE-Identity inside mobilityControlInfo and random access MSG3, whether mate to determine the access of object UE.
The device of described a kind of harmless tracking UE switching is characterized in that comprising:
The object UE tracking module, be used to finding object UE and following the tracks of upper object UE; And after object UE being detected and receiving switching command, according to the random access procedure of the indication information in switching command to Target cell monitoring objective UE, object UE on Target cell is found object UE and followed the tracks of;
Candidate cell collection determination module, be used to starting nearby region measurement and determining the candidate cell collection;
The candidate cell collection upgrades and triggers judge module, be used to judging whether to trigger the renewal of candidate cell collection;
Candidate cell collection update module, be used to upgrading the candidate cell collection;
Whether the switching command judge module, receive switching command for detection of object UE.
Preferably, described object UE, according to the C-RNTI in the UE random access procedure (Cell Radio Network Temporary Identifier), RAPID(RACH Preamble Identifier), maximum transmission power, first resolves RAR(Random Access Response) and access at random successful UE.
Preferably, when described candidate cell collection determination module is measured alien frequencies, use the Gap of tracked UE to occur simultaneously and do different-frequency measure, or use idle radio-frequency channel resource to do different-frequency measure, or eat dishes without rice or wine monitoring equipment specially reserved radio-frequency channel resource do different-frequency measure.
Preferably, determining and upgrading of candidate cell collection, all according to the measurement result of the monitoring equipment of eating dishes without rice or wine, determine that the best n of a signal quality community is as the candidate cell collection.
Preferably, in following situation, triggering the candidate cell collection upgrades:
According to the measurement result of described candidate cell collection determination module, the cycle is upgraded the community of candidate cell collection the inside; Perhaps
The random renewal; Perhaps
When receiving the measurement result that UE reports, according to the measurement result of UE, trigger the renewal of candidate cell collection.
Preferably, described candidate cell collection update module, after the candidate cell collection that completes the UE measurement result and report triggering upgrades, starts a timer, before timer expiry, the candidate cell collection is not upgraded.
Preferably, described switching command judge module receives described switching command, namely receive RRC and connect reconfiguration message, and the mobilityControlInfo cell is carried in the message the inside.
Preferably, after judgement receives switching command, eat dishes without rice or wine monitoring equipment by the targetPhysCellId of mobilityControlInfo the inside, carrierFreq information is determined the Target cell of switching, and at Target cell, wait for the random access procedure of this UE, if provide rach-ConfigDedicated in the mobilityControlInfo cell, according to random access physical layer resource given in rach-ConfigDedicated and random access sequence, find and determine the access of object UE, if there is no rach-ConfigDedicated information, by the C-RNTI in the C-RNTI MAC Control Element in the newUE-Identity inside mobilityControlInfo and random access MSG3, whether mate to determine the access of object UE.
By the present invention, can be at a high speed, effectively, the switching of low cost, automation, harmless tracking UE.
The accompanying drawing explanation
Fig. 1 is exemplified with the process schematic diagram of UE in the minizone switching;
Fig. 2 is exemplified with the harmless method flow diagram of following the tracks of the UE switching of the embodiment of the present invention;
Fig. 3 is exemplified with the harmless structure drawing of device of following the tracks of the UE switching of the embodiment of the present invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage are become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
In order to understand better the present invention, the concept of an at first clear and definite candidate cell collection, in order to guarantee the integrality of tracking data, defining the Target cell that the monitoring equipment monitoring UE of eating dishes without rice or wine is possible is the candidate cell collection of this UE.For candidate cell Ji Neide community, the monitoring equipment of eating dishes without rice or wine monitored the Liao Duigai community synchronous, measurement, system message receives and the preparation such as is opened in radio-frequency channel.
Thereby the configuration information that the monitoring equipment of eating dishes without rice or wine receives from application layer triggers the switching tracing task.Configuration information may be, but not limited to:
Test-types: switch test;
Sweep object: Null or cell id pair list;
Tracing object: Null, C-RNTI, IMSI etc.;
Task duration: for example 2 hours.
Eat dishes without rice or wine monitoring equipment in mission period, and recording-related information includes but not limited to:
Send time and positional information that measurement event reports, Serving cell and Target cell signal quality information, message itself;
Receive time and the positional information of switching command, Serving cell signal quality, message itself;
Send preamble time and positional information, Preamble and PRACH resource information;
Receive RAR time and positional information, RAR information;
Send switching deadline and positional information, Serving cell signal quality, message itself etc.
Fig. 1 is exemplified with the process schematic diagram of UE in the minizone switching, and in conjunction with schematic diagram shown in Figure 1, the embodiment of the present invention provides a kind of harmless tracking UE method of switching, and as shown in Figure 2, described method comprises step:
S1, the monitoring equipment of eating dishes without rice or wine are found object UE and are followed the tracks of upper object UE;
UE in tracking described here, can be according to the C-RNTI in the UE random access procedure (Cell Radio Network Temporary Identifier), RAPID(RACH Preamble Identifier), maximum transmission power, first resolves RAR(Random Access Response) and access at random successful UE.
S2, the monitoring equipment of eating dishes without rice or wine start nearby region measurement and determine the candidate cell collection;
Preferably, may there is different-frequency measure, when the monitoring equipment of eating dishes without rice or wine is measured alien frequencies, use the Gap common factor of tracked UE to do different-frequency measure, perhaps use idle radio-frequency channel resource to do different-frequency measure, or eat dishes without rice or wine monitoring equipment specially reserved radio-frequency channel resource do different-frequency measure.
Preferably, the present invention is the number of candidate cell in the designate candidate cell set not, for convenience, is assumed to be n here.Measurement result according to the monitoring equipment of eating dishes without rice or wine, determine that the best n of a signal quality community is as the candidate cell collection, can be according to RSRP (RS Received Power), perhaps RSRQ (RS Received Quality), or SINR (Signal to Interference plus Noise Ratio) etc.
S3, determine whether to trigger the candidate cell collection and upgrade, if proceed to step S4, otherwise proceed to step S5;
Optionally, the monitoring equipment of eating dishes without rice or wine is according to its measurement result, and the cycle is upgraded community and the corresponding configuration thereof of candidate cell collection the inside, also can upgrade at random.
Optionally, the cycle the when cycle upgrades can arbitrary disposition, also can fix.
Optionally, when receiving the measurement result that UE reports, according to the measurement result of UE, trigger the renewal of candidate cell collection, equally can be according to determining that n best community of signal quality is as the candidate cell collection, can be according to RSRP, or RSRQ, or SINR etc.
Optionally, eat dishes without rice or wine monitoring equipment after the candidate cell collection that completes the UE measurement result and report triggering upgrades, start a timer, before timer expiry, the candidate cell collection is not upgraded.When tracing into object UE, switched, triggered and upgrade the candidate cell collection.
S4, the checkout equipment Monitoring and Update of eating dishes without rice or wine candidate cell collection;
S5, the monitoring equipment of eating dishes without rice or wine detect object UE and whether receive switching command, if proceed to step S6, otherwise get back to step S3;
Optionally, receive described switching command, namely receive RRC and connect reconfiguration message, and the mobilityControlInfo cell is carried in the message the inside.
S6, according to the random access procedure of the indication information in switching command to Target cell monitoring objective UE;
Optionally, eat dishes without rice or wine monitoring equipment by the targetPhysCellId of mobilityControlInfo the inside, carrierFreq information is determined the Target cell of switching, and at Target cell, wait for the random access procedure of this UE, if provide rach-ConfigDedicated in the mobilityControlInfo cell, according to random access physical layer resource given in rach-ConfigDedicated and random access sequence, find and determine the access of object UE, if there is no rach-ConfigDedicated information, by the C-RNTI in the C-RNTI MAC Control Element in the newUE-Identity inside mobilityControlInfo and random access MSG3, whether mate to determine the access of object UE.
S7, the monitoring equipment object UE on Target cell is found object UE and followed the tracks of of eating dishes without rice or wine, return to step S3 and repeat.
Optionally, eat dishes without rice or wine monitoring equipment after finding that object UE and definite object UE successfully access Target cell, upgrade the candidate cell collection.
Above exemplified with embodiment of the method for the present invention, simultaneously, the present invention also comprises the device of a kind of harmless tracking UE switching, and it is corresponding with said method of the present invention, but specific implementation said method flow process.Fig. 3 is exemplified with the device of a kind of harmless tracking UE of embodiment of the present invention switching, and as shown in Figure 3, described device comprises:
The object UE tracking module, be used to finding object UE and following the tracks of upper object UE; And after object UE being detected and receiving switching command, according to the random access procedure of the indication information in switching command to Target cell monitoring objective UE, object UE on Target cell is found object UE and followed the tracks of;
Candidate cell collection determination module, be used to starting nearby region measurement and determining the candidate cell collection;
The candidate cell collection upgrades and triggers judge module, be used to judging whether to trigger the renewal of candidate cell collection;
Candidate cell collection update module, be used to upgrading the candidate cell collection;
Whether the switching command judge module, receive switching command for detection of object UE.
It will be understood by those skilled in the art that the apparatus and method described in the embodiment of the present invention are corresponding, thereby all preferred implementations of embodiment of the method also all can be used for device of the present invention, succinct in order to narrate, repeat no longer one by one here to repeat.
By the present invention, realized the harmless tracking to the UE switching.
It is more than the detailed description that the preferred embodiments of the present invention are carried out, but those of ordinary skill in the art is to be appreciated that, within the scope of the present invention, and guided by the spirit, various improvement, interpolation and replacement are all possible, such as use, can realize that the different programming language (as C, C++, Java etc.) of algorithm, use of functional purpose of the same race is realized etc.And device of the present invention both can also can pass through a plurality of chips by the one chip realization of programming, modes such as FPGA, DSP realizes.These are all in the protection range that claim of the present invention limits.
Claims (16)
1. a harmless method of following the tracks of the UE switching, is characterized in that, described method comprises step:
S1, the monitoring equipment of eating dishes without rice or wine are found object UE and are followed the tracks of upper object UE;
S2, the monitoring equipment of eating dishes without rice or wine start nearby region measurement and determine the candidate cell collection;
S3, determine whether to trigger the candidate cell collection and upgrade, if proceed to step S4, otherwise proceed to step S5;
S4, the checkout equipment Monitoring and Update of eating dishes without rice or wine candidate cell collection;
S5, the monitoring equipment of eating dishes without rice or wine detect object UE and whether receive switching command, if proceed to step S6, otherwise get back to step S3;
S6, according to the random access procedure of the indication information in switching command to Target cell monitoring objective UE;
S7, the monitoring equipment object UE on Target cell is found object UE and followed the tracks of of eating dishes without rice or wine, return to step S3 and repeat.
2. the method for claim 1 is characterized in that:
Object UE described in step S1, according to the C-RNTI in the UE random access procedure (Cell Radio Network Temporary Identifier), RAPID(RACH Preamble Identifier), maximum transmission power, first resolves RAR(Random Access Response) and access at random successful UE.
3. the method for claim 1 is characterized in that:
In step S2, when the monitoring equipment of eating dishes without rice or wine is measured alien frequencies, use the Gap of tracked UE to occur simultaneously and do different-frequency measure, or use idle radio-frequency channel resource to do different-frequency measure, or eat dishes without rice or wine monitoring equipment specially reserved radio-frequency channel resource do different-frequency measure.
4. the method for claim 1 is characterized in that:
Determining and upgrading of candidate cell collection, all according to the measurement result of the monitoring equipment of eating dishes without rice or wine, determine that the best n of a signal quality community is as the candidate cell collection.
5. the method for claim 1, is characterized in that, step S3 triggers in following situation:
Eat dishes without rice or wine monitoring equipment according to its measurement result, and the cycle is upgraded the community of candidate cell collection the inside; Perhaps
The random renewal; Perhaps
When receiving the measurement result that UE reports, according to the measurement result of UE, trigger the renewal of candidate cell collection.
6. method as claimed in claim 5 is characterized in that:
Eat dishes without rice or wine monitoring equipment after the candidate cell collection that completes the UE measurement result and report triggering upgrades, start a timer, before timer expiry, the candidate cell collection is not upgraded.
7. the method for claim 1 is characterized in that:
Step S5 judgement receives described switching command, namely receive RRC and connect reconfiguration message, and the mobilityControlInfo cell is carried in the message the inside.
8. method as claimed in claim 7 is characterized in that:
In step S6, eat dishes without rice or wine monitoring equipment by the targetPhysCellId of mobilityControlInfo the inside, carrierFreq information is determined the Target cell of switching, and at Target cell, wait for the random access procedure of this UE, if provide rach-ConfigDedicated in the mobilityControlInfo cell, according to random access physical layer resource given in rach-ConfigDedicated and random access sequence, find and determine the access of object UE, if there is no rach-ConfigDedicated information, by the C-RNTI in the C-RNTI MAC Control Element in the newUE-Identity inside mobilityControlInfo and random access MSG3, whether mate to determine the access of object UE.
9. one kind can't harm the device of following the tracks of the UE switching, it is characterized in that comprising:
The object UE tracking module, be used to finding object UE and following the tracks of upper object UE; And after object UE being detected and receiving switching command, according to the random access procedure of the indication information in switching command to Target cell monitoring objective UE, object UE on Target cell is found object UE and followed the tracks of;
Candidate cell collection determination module, be used to starting nearby region measurement and determining the candidate cell collection;
The candidate cell collection upgrades and triggers judge module, be used to judging whether to trigger the renewal of candidate cell collection;
Candidate cell collection update module, be used to upgrading the candidate cell collection;
Whether the switching command judge module, receive switching command for detection of object UE.
10. device as claimed in claim 9 is characterized in that:
Described object UE, according to the C-RNTI in the UE random access procedure (Cell Radio Network Temporary Identifier), RAPID(RACH Preamble Identifier), maximum transmission power, first resolves RAR(Random Access Response) and access at random successful UE.
11. device as claimed in claim 9 is characterized in that:
When described candidate cell collection determination module is measured alien frequencies, use the Gap of tracked UE to occur simultaneously and do different-frequency measure, or use idle radio-frequency channel resource to do different-frequency measure, or eat dishes without rice or wine monitoring equipment specially reserved radio-frequency channel resource do different-frequency measure.
12. device as claimed in claim 9 is characterized in that:
Determining and upgrading of candidate cell collection, all according to the measurement result of the monitoring equipment of eating dishes without rice or wine, determine that the best n of a signal quality community is as the candidate cell collection.
13. device as claimed in claim 9, is characterized in that, in following situation, triggers the candidate cell collection and upgrade:
According to the measurement result of described candidate cell collection determination module, the cycle is upgraded the community of candidate cell collection the inside; Perhaps
The random renewal; Perhaps
When receiving the measurement result that UE reports, according to the measurement result of UE, trigger the renewal of candidate cell collection.
14. device as claimed in claim 13 is characterized in that:
Described candidate cell collection update module, after the candidate cell collection that completes the UE measurement result and report triggering upgrades, starts a timer, before timer expiry, the candidate cell collection is not upgraded.
15. device as claimed in claim 9 is characterized in that:
Described switching command judge module receives described switching command, namely receive RRC and connect reconfiguration message, and the mobilityControlInfo cell is carried in the message the inside.
16. device as claimed in claim 15 is characterized in that:
After judgement receives switching command, eat dishes without rice or wine monitoring equipment by the targetPhysCellId of mobilityControlInfo the inside, carrierFreq information is determined the Target cell of switching, and at Target cell, wait for the random access procedure of this UE, if provide rach-ConfigDedicated in the mobilityControlInfo cell, according to random access physical layer resource given in rach-ConfigDedicated and random access sequence, find and determine the access of object UE, if there is no rach-ConfigDedicated information, by the C-RNTI in the C-RNTI MAC Control Element in the newUE-Identity inside mobilityControlInfo and random access MSG3, whether mate to determine the access of object UE.
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